Hilti SCM 22-A User manual
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SCM 22-A
en Originaloperatinginstructions....................................... 1
fr Moded'emploioriginal ........................................... 12
es Manualdeinstruccionesoriginal .................................... 23
pt Manualdeinstruçõesoriginal ...................................... 34
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1 Information about the documentation
1.1 About this documentation
• Read this documentation before initial operation or use. This is a is a prerequisite for safe, trouble-free
handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the product.
• Always keep the operating instructions with the product and make sure that the operating instructions
are with the product when it is given to other persons.
1.2 Explanation of symbols used
1.2.1 Warnings
Warnings alert persons to hazards that may occur when handling or using the product. The following signal
words are used in combination with a symbol:
DANGER! Draws attention to an imminent hazard that will lead to serious personal injury or
fatality.
WARNING! Draws attention to a potential hazard that could lead to serious personal injury or
fatality.
CAUTION! Draws attention to a potentially dangerous situation that could lead to minor personal
injury or material damage.
1.2.2 Symbols in the documentation
The following symbols are used in this document:
Read the operating instructions before use
Instructions for use and other useful information
1.2.3 Symbols in the illustrations
The following symbols are used in illustrations:
These numbers refer to the corresponding illustrations found at the beginning of these operating
instructions.
The numbering reflects the sequence of operations shown in the illustrations and may deviate
from the steps described in the text.
Item reference numbers are used in the overview illustration and refer to the numbers used in
the key in the product overview section.
This symbol is intended to draw special attention to certain points when handling the product.
1.3 Product-dependent symbols
1.3.1 Symbols
The following symbols are used on the product:
Rated speed under no load
Direct current (DC)
Revolutions per minute
Saw blade
1.4 Product information
Hilti products are designed for professional use and may be operated, serviced and maintained only by
trained, authorized personnel. This personnel must be informed of any particular hazards that may be
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encountered. The product and its ancillary equipment may present hazards when used incorrectly by
untrained personnel or when used not as directed.
The type designation and serial number are printed on the type identification plate.
▶Write down the serial number in the table below. You will be required to state the product details when
contacting Hilti Service or your local Hilti organization to inquire about the product.
Product information
Type: SCM 22A
Generation: 01
Serial no.:
2 Safety
2.1 General safety precautions for power tools
WARNING! Read all safety precautions and other instructions. Failure to observe the safety
precautions and other instructions may result in electric shock, fire and/or serious injury.
Keep all safety precautions and instructions for future reference.
Working area safety
▶Keep your working area clean and well lit. Cluttered or dark working areas can cause accidents.
▶Do not operate the power tool in explosive atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
▶Keep bystanders, children and visitors away while operating the power tool. Distractions may cause
you to lose control of the tool.
Electrical safety
▶Do not expose the power tool to rain or wet conditions. Water entering a power tool will increase the
risk of electric shock.
▶Do not allow your body to come into contact with grounded surfaces such as pipes, radiators,
ovens and refrigerators. There is an increased risk of electric shock if your body is grounded.
Personal safety
▶Stay alert, watch what you are doing and use common sense when operating a power tool. Do
not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A
moment of inattention while operating the power tool may result in serious personal injury.
▶Adopt the correct posture when working. Maintain proper footing and balance at all times. This
will allow you to control the power tool better, even in unexpected situations.
▶Wear your personal protective equipment and always wear protective glasses. Depending on the
type of power tool you are using and its purpose, wearing safety equipment such as a dust mask,
slip-resistant safety shoes, a hard hat or hearing protection will reduce the risk of injury.
▶Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or long hair may be caught in moving parts.
▶Avoid starting the tool accidentally. Make sure that the power tool is switched off before connecting
it to the battery and before picking it up or carrying it. Carrying power tools with your finger on the
switch or plugging in power tools that are already switched on may cause accidents.
▶Remove accessory tools or wrenches before switching the power tool on. An accessory tool or a
wrench left attached to a rotating part of the power tool may cause personal injury.
▶If devices are provided for connecting dust extraction and collection equipment, make sure these
are connected and used correctly. The use of a dust extraction system can reduce dust-related
hazards.
Using and handling the power tool
▶Do not overload the tool. Use the correct power tool for your application. The correct power tool
will do the job better and more safely within the performance range for which it is designed.
▶Do not use a power tool if it has a faulty on/off switch. Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
▶Remove the battery from the power tool before making any adjustments, changing accessories or
storing the tool. This precaution reduces the risk of the power tool starting accidentally.
▶Store power tools out of reach of children when not in use. Do not allow persons who are not
familiar with the tool or these instructions to operate it. Power tools are dangerous in the hands of
untrained users.
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▶Maintain power tools properly. Check that moving parts are in correct working order and do not
jam, and check whether any parts are broken or so damaged that correct operation of the power
tool cannot be guaranteed. If any parts are damaged, have these parts repaired before using the
tool. Many accidents are caused by poorly maintained power tools.
▶Keep cutting tools sharp and clean. Properly maintained tools with sharp cutting edges are less likely
to jam and are easier to control.
Using and handling the cordless power tool
▶Use only the specified batteries in the power tools. Use of any other batteries may present a risk of
injury and fire.
▶Recharge the batteries only with the chargers specified by the manufacturer. A charger that is
suitable for a certain type of battery may present a risk of fire when used with other types of battery.
▶When the battery is not in use, keep it away from other metal objects such as paper clips, coins,
keys, nails, screws, or other small metal objects that could cause bridging between the terminals.
A short circuit between the battery terminals may cause burns or a fire.
▶Liquid may leak from the battery if used incorrectly. Avoid contact with this liquid. Liquid leaking
from the battery may cause skin irritation or burns. If contact accidentally occurs, rinse with water. Seek
medical attention if the liquid comes into contact with the eyes.
2.2 Safety instructions for all saws
Cutting procedures
▶DANGER: Keep hands away from cutting area and the blade. Keep your second hand on
auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade.
▶Do not reach underneath the workpiece. The guard cannot protect you from the blade below the
workpiece.
▶Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth
should be visible below the workpiece.
▶Never hold piece being cut in your hands or across your leg. Secure the workpiece to a stable
platform. It is important to support the work properly to minimize body exposure, blade binding, or loss
of control.
▶Hold the power tool by insulated gripping surfaces only, when performing an operation where the
cutting tool may contact hidden wiring. Contact with a "live" wire will also make exposed metal parts
of the power tool "live" and could give the operator an electric shock.
▶When ripping, always use a rip fence or straight edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.
▶Always use blades with correct size and shape (diamond versus round) of arbour holes. Blades
that do not match the mounting hardware of the saw will run eccentrically, causing loss of control.
▶Never use damaged or incorrect blade washers or bolt. The blade washers and bolt were specially
designed for your saw, for optimum performance and safety of operation.
Kickback causes and related warnings
• kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled
saw to lift up and out of the workpiece toward the operator;
• when the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor
reaction drives the unit rapidly back toward the operator;
• if the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig
into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the
operator.
Kickback is the result of saw misuse and/or incorrect operating procedures or conditions and can be avoided
by taking proper precautions as given below.
▶Maintain a firm grip with both hands on the saw and position your arms to resist kickback forces.
Position your body to either side of the blade, but not in line with the blade. Kickback could cause
the saw to jump backwards, but kickback forces can be controlled by the operator, if proper precautions
are taken.
▶When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the
saw motionless in the material until the blade comes to a complete stop. Never attempt to remove
the saw from the work or pull the saw backward while the blade is in motion or kickback may
occur. Investigate and take corrective actions to eliminate the cause of blade binding.
▶When restarting a saw in the workpiece, centre the saw blade in the kerf and check that saw
teeth are not engaged into the material. If saw blade is binding, it may walk up or kickback from the
workpiece as the saw is restarted.
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▶Support large panels to minimise the risk of blade pinching and kickback. Large panels tend to sag
under their own weight. Supports must be placed under the panel on both sides, near the line of cut and
near the edge of the panel.
▶Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerf
causing excessive friction, blade binding and kickback.
▶Blade depth and bevel adjusting locking levers must be tight and secure before making cut. If
blade adjustment shifts while cutting, it may cause binding and kickback.
▶Use extra caution when sawing into existing walls or other blind areas. The protruding blade may
cut objects that can cause kickback.
Lower guard function
▶Check lower guard for proper closing before each use. Do not operate the saw if lower guard does
not move freely and close instantly. Never clamp or tie the lower guard into the open position. If
saw is accidentally dropped, lower guard may be bent. Raise the lower guard with the retracting handle
and make sure it moves freely and does not touch the blade or any other part, in all angles and depths
of cut.
▶Check the operation of the lower guard spring. If the guard and the spring are not operating
properly, they must be serviced before use. Lower guard may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of debris.
▶Lower guard may be retracted manually only for special cuts such as "plunge cuts" and "compound
cuts". Raise lower guard by retracting handle and as soon as blade enters the material, the lower
guard must be released. For all other sawing, the lower guard should operate automatically.
▶Always observe that the lower guard is covering the blade before placing saw down on bench or
floor. An unprotected, coasting blade will cause the saw to walk backwards, cutting whatever is in its
path. Be aware of the time it takes for the blade to stop after switch is released.
2.3 Additional safety instructions
Personal safety
▶Modification of the power tool is not permitted.
▶Wear ear protectors. Exposure to noise can cause hearing loss.
▶Operate the tool only together with the safety devices that belong to it.
▶Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers
during breaks between working.
▶The power tool is not intended for use by inexperienced persons who have received no special
training.
▶Keep the power tool out of reach of children.
▶Do not switch the product on before it is at the workplace.
▶Remove the battery before storing or transporting the power tool.
▶Do not work overhead with the product.
▶Do not attempt to brake the product by applying lateral pressure to the saw blade.
▶Do not touch the clamping flange or the clamping screw while the power tool is running.
▶Never press the drive spindle lock button while the saw blade is rotating.
▶Never direct the power tool toward persons.
▶Adjust the pressure applied to the saw blade and the material being cut so that the blade does not
stall, possibly causing kickback.
▶Metal chips / cuttings are sharp and may cause injury. Keep your clothing closed so that no metal
chips or cuttings can find their way into your gloves, footwear or any other part of your clothing.
▶Pay attention to where the metal cuttings are flying. The cuttings are hot and could cause a fire or
injuries such as burns or cuts.
▶Avoid overheating the tips of the saw blade teeth.
▶Observe the national health and safety requirements.
▶To reduce the risk of injury, use only genuine Hilti accessories and accessory tools.
▶Dust from materials, such as paint containing lead, some wood species, concrete / masonry / stone
containing silica, and minerals as well as metal, may be harmful. Contact with or inhalation of the dust
may cause allergic reactions and/or respiratory or other diseases to the operator or bystanders. Certain
kinds of dust are classified as carcinogenic such as oak and beech dust, especially in conjunction with
additives for wood conditioning (chromate, wood preservative). Material containing asbestos may be
handled only by specialists. Use a dust removal system whenever possible. To achieve a high level
of dust collection, use a suitable vacuum cleaner. When indicated, wear a respirator appropriate
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